I bought a Chinese 40w laser and have had multiple tech conversations with their US connect. He has essentially set up the laser with all of the specs inside the program that he uses, and instructed me on the focal distance from the laser to the wood. He is stumped. CorelDraw is communicating to the laser, it does all of the movements of the cutting or the engraving, but the laser won't fire? It does however fire when I press the laser test button. Please advise! THANK YOU